User Experience (UX) – It is a user’s thought and feelings about using a system, product, or service. This human-computer interaction impacts a user’s perception of the system or device. Aside from practicality, User Experience stresses on the experiential, meaningful, and affective aspects of the system.

Why is it important to distinguish the difference between UI and UX?
It’s common to have UI and UX people on the same project, so it is important to distinguish the roles and to be clear which responsibility each of them would have. If you want the two master professionals contributing their individual expertise to the end result, then you need to beware the different specializations of the two. Overall, understanding the distinctions between UI and UX is essential to establish a foundation for a more successful final product.